IBM WDI-325Q 20MB Hard Drive: Difference between revisions
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This is a circa 1987-1988 proprietary Hard Drive, manufactured by IBM Japan. Most often found in the IBM PS/2 Model 25 and 30. | |||
"The PS/2 Model 25, 25-286, 30, and 30-286 used an 8-bit pseudo-IDE hard drive interface at 3:1 interleave. Both power and data I/O are provided to the drive through a single card-edge connector."<ref>[https://forum.vcfed.org/index.php?threads/hard-drive-for-ibm-ps-2-model-25.11416/#post-167559 vwestlife. “Hard Drive for Ibm Ps/2 Model 25?” ''Vintage Computer Federation Forums'', 10 June 2008, https://forum.vcfed.org/index.php?threads/hard-drive-for-ibm-ps-2-model-25.11416/.]</ref>{{WikipediaInfoAlt|Device}} | "The PS/2 Model 25, 25-286, 30, and 30-286 used an 8-bit pseudo-IDE hard drive interface at 3:1 interleave. Both power and data I/O are provided to the drive through a single card-edge connector."<ref>[https://forum.vcfed.org/index.php?threads/hard-drive-for-ibm-ps-2-model-25.11416/#post-167559 vwestlife. “Hard Drive for Ibm Ps/2 Model 25?” ''Vintage Computer Federation Forums'', 10 June 2008, https://forum.vcfed.org/index.php?threads/hard-drive-for-ibm-ps-2-model-25.11416/.]</ref>{{WikipediaInfoAlt|Device}} | ||
{{DeviceAlerts}} | {{DeviceAlerts}} | ||
Latest revision as of 05:11, 6 August 2024
This is a circa 1987-1988 proprietary Hard Drive, manufactured by IBM Japan. Most often found in the IBM PS/2 Model 25 and 30.
"The PS/2 Model 25, 25-286, 30, and 30-286 used an 8-bit pseudo-IDE hard drive interface at 3:1 interleave. Both power and data I/O are provided to the drive through a single card-edge connector."[1]
- For more information, see this article's corresponding Wikipedia page: Device.
| Preliminary Information | |
|---|---|
| Leak Risk | High |
| Batteries | None |
| Destructive Entry | No |
Known Issues
Symptom or Problem Encountered
Causes
Solutions
Disassembly Notes
Four Phillips screws.
Original Parts
Controller Board – 6127880 – A07188
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C2, C9 | 2 | 47 µF | 16 | Through Hole | 6mm | 6mm | 5mm | 105 °C | Electrolytic | |||
| C3, C4, C5, C6, C12 | 5 | 6.8 µF | 16 | Through Hole | 4mm | 6mm | 5mm | 105 °C | Electrolytic | C3 is unmarked | ||
| C7, C10, C11, C13 | 4 | 10 µF | 16 | Through Hole | 4mm | 6mm | 5mm | 105 °C | Electrolytic | |||
| C8, C14 | 2 | 4.7 µF | 16 | Through Hole | 4mm | 6mm | 5mm | 105 °C | Electrolytic | |||
| C1 | 1 | 100 µF | 6.3 | Through Hole | 6mm | 6mm | 5mm | 105 °C | Electrolytic |
Replacement Parts
Basic PCB Name
| RefDes | Qty | Compatible Part Number | Order Links |
|---|---|---|---|
| Digikey |
If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.